'Hammer Gang.'

December 1, 1985

KARACHI, PAKISTAN — The heads of the seven people were crushed. One was a 4-month-old girl. Another was a 3-year-old girl. Police are blaming the killings on the ''Hammer Gang,'' who are believed responsible for 17 other slayings this month. The people killed Saturday were the family of an electrician who is working in the Persian Gulf nation of Qatar. They were not well off and lived in a two-room house. The attackers ransacked it.